Multiple Choice
Which of the following can cause reciprocal translocations to occur?
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15. Gene Expression
Mutations
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Point mutations primarily alter which component of gene expression?
A
The sequence of nucleotides in DNA
B
The concentration of mRNA
C
The structure of the ribosome
D
The rate of transcription
Verified step by step guidance1
Understand that a point mutation is a change in a single nucleotide base pair in the DNA sequence.
Recognize that gene expression involves the processes of transcription and translation, where DNA is transcribed into mRNA and then translated into proteins.
Consider how a change in the DNA sequence, such as a point mutation, would affect these processes. Specifically, it would alter the sequence of nucleotides in the DNA.
Acknowledge that the sequence of nucleotides in DNA is crucial because it determines the sequence of mRNA during transcription, which in turn affects the protein produced during translation.
Conclude that a point mutation primarily alters the sequence of nucleotides in DNA, which is the first step in gene expression and can have downstream effects on mRNA and protein synthesis.
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